H. C. Janssen has written:
'De ontwikkelingslanden' -- subject(s): Economic conditions
A. T. H. Janssen has written: 'Het interne rendement van het middelbaar beroepsonderwijs' -- subject(s): Vocational school students
H. L. Janssen has written: 'Holten, het bisschoppelijk kasteel de Waardenborg' -- subject(s): Holten, Netherlands. Waardenborg, Netherlands Holten
H. C. Gardner has written: 'Rosedale'
C H. Koch has written: 'Logik'
C. H. ROBERTS has written: 'THE CODEX'
C. H. Bishop has written: 'Folkestone'
C H. Bloomster has written: 'Geocost'
C. H. Hermansson has written: 'Kommunister'
C. H. Andrus has written: 'An Olympian adventure'
C. H. Andersen has written: 'Anne Helene'
C. H. Coombs has written: 'Mathematical psychology'
C. H. Thames has written: 'Violence is golden'